Автор - brown2011

Ln(x+4) - ln(x+3) = ln3

Ответ

Автор - Лотарингская
ОДЗ
x+4≥0
x+3≥0

x≥-4
x≥-3

x∈[-3;+∞)

ln(x+4) - ln(x+3) = ln3
ln((x+4)/(x+3)) = ln3
(x+4)/(x+3)=3
x+4=3x+9
x=-2,5

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